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R. L. W ILCOX.

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APPLICATION FILED NOV.'29, 1913. 1,10%,0941, Patented July 21, 1914.

5 SHEETSSHEET 1.

I/VyE/vTO I MTNESSES M wwfli R. L. wiibx.

HEADER.

APPLICATION FILED NOV. 29, 1913.

1,104,090. v Patented- July 21, 1914,

Mam/5535s INVENTOR fimhe MM xw d w R. L. WILGOX.

HEADER.

APPLICATION FILED NOV. 29, 1913.

Patented July 21, 1914,

5 SHBETSSHEET 3.

T IL

malt 6858 I VE/VTOR I 971-6 Z 1 0 NEY R. L. WILGOX.

, HEADER. APPLICATION FILED NOV. 29, 1913.

1 1 04,090, Patented July 21, 1914,

, 5 SHEETS-SHEET 4.

R. L. WILGOX.

HEADER.

APPLICATION FILED NOV. 29, 1913.

,Patented July 21, 1914 5 SHEETS SHEBT 6.

MTNESSES, 12/ mm: TO K.

M x WW UNITED STATES PATENT OFFICE.

RICHARD LESTER WILCOX, OF WATERBURY, CONNECTICUT, ASSIGNOR TO THEWATERBURY FARREL FOUNDRY AND MACHINE COMPANY, OF WATERBURY.

I CONNECTICUT, A CORPORATION OF CONNECTICUT.

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Specification of Letters Iatent.

Patented July 21, 1914.

Application filed November 29, 1913. Serial No. 803,670.

- tam new and useful Im rovements in Headsatisfactorily and efliciently,with a mate-' rlally reduced number of more accessible parts than in theold types of headers, these said parts being of such design andstructure as to be capable of replacement and substitution, with theminimum delay and inconvenience.

1 The mechanisms of'the header towhich particular attention has beenpaid in this invention are ;-First, the means for gripping the dies,which permit an adjustment 'thereof so that a variable pressure-1nay beapplied at different points thereon. Secondly, the feed stop mechanism,which is located where the proper adjustments thereof can only be madewith difliculty, but as constructed in my improved header the parts havebeen so arranged that all of the adjustments are made upon the outsideof the machine where they are readily accessible. And lastly, means forapplying a lubricant to the wire after it leaves the feed rolls andbefore it enters the dies.

The above are only a few of the many improvements in my header over andabove those in the prior art, as will be apparent from the followingdescription and the drawings, in which like numerals of referencedesignate like parts in the several figures.

Figure 1 is a fragmentary plan view of my improved header; Fig. 2 is aside elevation thereof with a portion of the fly wheel upon the nearslde of the header removed;

Fig. 3 is a plan view of the die gripping mechanism with a portion ofthe bed in section upon line A-B of Fig. 2; Fig. 4 is a transversesectional elevation of the same parts upon line CD of Fig. 3; Fig. 5 isa view of the feed roll and the adjacent mechanism, partly in section;Fig. 6 is a trans verse'sectional View thereof taken upon line EF ofFig. 1; Fig. 7 is a side view, partly in section, of the wire lubricatindevice; Fig, 8 is a plan view thereof; Fig. 9 is a side elevation of aportion ofthe die gripping mechanism; Fig. 10 is a fragmentary plan Viewof a portion of the feed stop mechanism; Fig. 11 is an end view of someof the parts shown in Fig. 10; and Fig. 12 is a prospective view of oneset of the dies.

In the drawings, the numeral 1 designates the bed of the machine, withinwhich is rotatably mounted a crank shaft 2, having the fly wheels 33thereon upon oppo site sides of the machine, and within which is mounteda reciprocating gate 4 that is connected with the crank shaft through apitman. 5, said gate carrying a punch block 6, with punches 7 and 8thereon. This punch, as is common, has a movement on the gate atsubstantially a right angle to the path of movement of the gate itself.All of these parts are of the usual construction and well known in theart, and therefore do not require more detailed description.

Fixed within the bed, opposite the punch holder, is a die block9, havinga cover 10 connected therewith, and between which is movably mounted thedies 11 and 12. Any type of die block may be used with my header.

One end of the section 11 is provided with recesses 15 at the end of thegrooves 16 to form the blank head.

The feeding mechanism comprises a bracket 17 secured by bolts 28, 29 and30 that pass through the elongated slots 31, a shaft 18 having a feedroll 19 at one end nd a gear 20 adjacent to the other end upon Which isa friction brake 22, a roll frame 24 pivotally mounted upon a stud 23, ashaft 25 having a feed roll 26 thereon, a gear 27 fixed on said shaft 25the teeth of which mesh into those of the gear 20, a fixed guide spring32 that insures a positive straight movement of the bracket and having alug 33 thereon for the screw 34 with a lock nut 35, said screw abuttingagainst a button 36 in said bracket.

The wire is guided between the rolls l9 and 26 by a quill 37 secured bya screw 39 in a plate 38 fixed to the bracket 17, the axis of said quillbeing coincident with the feed line of the machine.

The roll 26 is held in contact with the roll 19 by the spring 40 betweenthe frame 24 and washer 43, its tension being varied by a screw 41 inthe yoke 42. A rod 44 provides ready means for rotating said bolt and alock nut 45 with an arm 46 holds the bolt,

against premature rotation. Intermittent rotary movement is given theshafts 18 and 25 through the link 47 that is moved endwise by a cam (notshown) actuated by the shaft 2 and connected with a rock arm 48pivotally mounted upon a bolt 49, a pawl carrier 50 upon the shaft 18carrying a pawl 51 that engages the teeth of the ratchet disk 21, and alink 52 connecting the pawl carrier with rock arm 48. The abovedescribed mechanism for rotating the feed rolls from the crank shaft isold and constitutes no part of this invention.

The present practice of lubricating the wire before it is engaged by thefeed rolls has proven objectionable, because the wire is wet and therebyaffects the friction of the rolls thereon, so much so that the feed isnot positive and frequently short lengths of wire are fed into the dies,resulting in the production of blanks that are imperfect; and again, asmuch of the lubricant is cleaned off by the feed rolls there isinsufficient upon the wire as it enters the dies to produce the bestresults. Means are provided in my device forapplying lubricant to thewire after it passes the feed rolls and before it enters the die. Thewire is therefore dry as it passes between the rolls, insuring apositive feed, and yet sufficient lubricant is applied for the necessaryoperations thereon. My device for accomplishing this result, consists ofa cup 53, filled with lubricant, fixed to the bracket 17 by the bolts54, and within which a cradle 55 is pivotally mounted upon one of saidbolts. A shaft 56 is rotatably mounted in this cradle and carries awheel 57, of felt or similar material, between fixed disks 58. Thecradle is moved upwardly with a yielding pressure by a screw 59 threadedthrough the bottom of the cup, and within said cup, between said screwand cradle, is a spring 60. The quill 61 that guides the wire betweenthe feed rolls and the bed is provided with a recess or slot 62, andinto which projects the wheel 57 that is rotated by its frictionalcontact with the Wire passing through the quill. As it rotates, thewheel picks up sufficient lubricant from the cup and deposits it uponthe wire.

a cross section.

Referring now particularly to the die gripping mechanism, the numeral 13desighates a plunger that has a reciprocatory movement within the bed 1,derived from a cam 14 fixed upon a rotatably mounted shaft 63, through arock lever 64, having a roll 65 therein contactingwith said cam, andmounted upon a fixed shaft 66, a yoke 69 connected with the plunger 13by the stud 70, a shear block 68 within said yoke connected by a pintle67 to said rock lever, a shear pin 72 projecting across the opening 71insaid yoke and supported at each end in the shear bushings 7 3, and ascrew 74 that is threaded in the yoke and bears against the shear block.holding itin contact with the shear pin 72, as shown in Fig. 9. Underundue or unusual strains the shear pin 72 is cut ofi by, the shear block68 against the bushings 73. Rotation of the cam 14 actuates the rocklever 64 and moves the plunger 13in one direction, the spring 75,connected with the pintle 67, and the fixed pin 76, moves the plunger inthe o posite direction and maintains the cam r0 1 65 in contact with theperiphery of said cam.

Reciprocally mounted in the bed, and movable ina path at substantially aright angle.

to the plunger 13, are the slides 77 and 78, having heads 79 thereon,rectangular in The outer ends of the said slides are connected with agripping block 80 by screws 81 that pass therethrough and into theslides, the outer ends of which are rounded and project intocorresponding concaved recesses in the gripping block. This means ofsecuring these parts together enables the gripping block and the slidesto have a limited rocking movement in relation to each other. Betweenthe dies and said gripping block 80 is a filler plate 96.

Lying within a recess in the plunger 13 are the tog le blocks 82-82,connected with the sli cs 77. and 78 by the toggles 83-83. Mountedwithin the bed 1, adjacent to the plunger 13, are the toggle adjustingblocks 8484 that are connected with the toggle blocks 8282 by thetoggles 85- 85. The toggle adjusting blocks are independently andseparately adjusted by means of the wedges 86 that are provided with oneflat inclined face 87 and bear against a cor-- responding inclined faceuponthe toggle adjusting blocks. These wedges are adjustable parallel totheir length within the bed by the screws 88 that are threaded throughthe fixed toggle cap 89 and bear against the end of said wedges, and theauxiliary screws 90 that pass through the screws 88 and are threadedinto said wedges (see Fig. 4). By raising the wedges 86, through themeans just described, the toggle adjusting blocks 84 are independentlymoved toward the axis of the plunger 13, and the movement of the wedgesin the opposite direction will permit the said blocks to be moved awayfrom the plunger 13 by the screws 91 that pass through a slot 92 in thewedges, and are threadedtinto the said. blocks. This screw also holdsthe wedges, adjusting blocks and connected parts rigid, when in any oftheir adjusted positions.

Against each of the toggle adjusting blocks 84 are the plates 93 thattake the end thrust caused by the movement of the plun: ger 13-. Each ofthese plates has a tongue 94 thereon that-projects into a groove in,

and are held in contact with, the toggle adjusting blocks 84 by thescrews 95. Lateral thrust upon the heads 79 of the slides 77 and 78 istaken by the plate 118, which is mounted in the bed 1 and held by thescrew 119. As theplunger 13 is moved through the action of the cam 14,the slides 77 and 78 are moved through the action of the togglemechanism, hereinbefore described, and the dies are moved sidewise fromthe position where they receive the wire to the heading position. Theseparts are all moved in the opposite direction through the action of thespring 75 and the die returning mechanism, which comprises a fillerplate 97, a pressure plate 98 mounted within a block 99 fixed in thebed, rods 100 connected with said pressure plate 98 and to a block 101against which bears a spring 102 fixed to the bed 1. The inward movementof the movable plate 98 is limited by a screw 103 threaded through theblock 101 and contacting with the bed. 7

By the mechanism above described for shiftin the dies an independent andseparate a justment is given the slides 77 and 78, thereby enablin thedies to grip the wire with a variab e pressure, for example it may beheld very rigidly atthe front or head end where the maximum strainocours and only, slightly at the opposite or cutting off end, where itis nly necessary to prevent the wire from bending or swelling.

The numeral 104 designates the feed stop arm, which is connected with arod 105 that passes through the bed 1 substantially parallel with thedies and the screw 106 that is threaded into the split collar 107, andhaving a nut 108. upon the outer end thereof. By proper manipulation ofthe screw 106 within the split collar 107 and the nut 108 upon the rod105, the relative position of the feed stop arm 104 toward and away"from the dies may be varied.

The mechanism for operating and timing the stop arm 104 comprisesthe'cam 109 upon the shaft 63, having a cam groove 110 therein, withinwhich the plate 111 is shiftably secured, a rock arm'1l2 secured to ashaft 114 rotatably mounted within the shaft '66, a roll 113 thatprojectsinto said cam groove, a lever 115 secured to the shaft 114, anda swivel block 116 pivotally mounted in the outer end thereof, whichprojects into the open space between the lugs 117 upon the stop arm 104(Fig. 11). By this mechanism the adjustments of the stop arm 104, bothas to timing and position, are controlled from mechanism upon thereforehave it understood that I do not limit myself to the exact constructionherein shown and described,'but claim all that falls fairly within thespirit and scope of my invention as set forth in the appended claims.

Having described my invention, what I claim as new and desire 'tersPatent, is:

1. The combination with dies; of means for imparting a lateral movementthereto; and means connected therewith, whereby the resistance pressureby the dies upon the wire will be variable at different pointsthroughout the length of the dies.

2. The combination with dies; of means for imparting a lateral movementthereto, having independently operated members;

' and means for varying the relative positions of said members,

3. The combination with dies; of means for imparting a lateral movementthereto in one direction, said meanshaving companion members connectedtherewith; and means for independentlyivarying the relative positions ofsaid companion members.

4. The combination with dies; of means for moving the same laterally,said means having a plurality of independent slides; a primary member;means for connecting said slides to said primary member; and means forindependently adjusting the relative positions of said slides.

5. The combination with dies; of means for imparting a lateral movementthereto,

comprising a plurality of reciprocating members; a plunger; an operativeconnection between each of said slides and said lunger; and means forindependently varying the'position of each of said slldes toward andaway from said plunger.

6. The combination with dies; of meansfor moving the same'laterally,having independent slides operatively connected therewith; a plunger; anoperative connection between said slides and plunger; and means forseparately and independently varying the relative positions of saidslides and their operative connection with said plunger.

to secure by Let- 7. The combination with dies; of means i for impartinga lateral movement thereto, said means comprising a plate; companionslides connected therewith; a plunger; a toggl connection between saidplunger and slides; and means for separately adjustin said slides,whereby they may occupy di fere'nt positions in relation to saidplunger.

8. The combination with dies; of a gripping block; slides connectedtherewith so that said gripping block may have a limited rocking.movement in relation thereto; a plunger; an operative connectionbetween said plunger and slides; adjusting blocks; an operativeconnection between said plunger and adjusting blocks; and means forvarying the position of said adjusting blocks.

9. The combination with dies; of a gripping block; slides connectedtherewith so that said gripping block may have a limited rockingmovement in relation thereto; a plunger; an operative connection betweensaid plunger and slides; adjusting blocks;

an operative connection between said plunger and adjusting blocks; meansfor varying the position of said adjusting blocks; and means'for lockingsaid adjusting blocks against movement when in its adjusted posi tions.

10. In a header, the combination with wire feed rolls; of means forrotatably.

mounting the same uponsaid header; and meansfor applying lubricant tosaid wire between the feed rolls and the header.

11. In a header, the combination with dies; of means for feeding wirethereto; means for limiting the movement of said feed, said meanscomprising a rotarily mounted stop arm; and means for imparting arocking movement to said stop arm about the axis thereof, actuated bycam mechanism upon one side of the header.

12. Ina header, the combination with dies; of means for feeding wirethereto; means for limiting the movement of said feed, said meanscomprising a rotarily mounted stop arm; means exposed upon one side ofthe header, for adjusting the relative position of said stop arm towardand away from said dies; and means, actuated by a cam upon one side ofthe header, for imparting a rocking movement to said stop arm about theaxis thereof.

13. In a header, the combination with dies; of means for imparting alateral movement thereto, said means comprising a cam, a rock lever, aplunger, and slides; means for limiting the feed of the wire to saiddies, said means comprising a Stop arm; a

cam; a rock shaft rotatably mounted within the fulcrum of said rocklever; a rock lever connected with said rock shaft and having anoperative connection with said cam; and a second rock lever connectingsaid rock shaft with said stop arm.

In testimony whereof I afiix my signature in presence of two witnesses.

RICHARD LESTER VVILCOX. Witnesses:

F. L. PLATT, H. B. CoLEY.

